MP Police PC · Science & Simple Arithmetic

Chemistry Basics

Acids, bases, salts, metals and non-metals.

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5 real MP Police PC questions with instant answers — no signup, ~3 minutes.

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  • Q1 · Chemistry Basics · EASY

    Which of the following is the chemical formula of common salt (table salt)?

  • Q2 · Chemistry Basics · EASY

    Litmus paper is used to test whether a substance is acidic or basic. What colour does blue litmus paper turn when dipped in an acidic solution?

  • Q3 · Chemistry Basics · MEDIUM

    Which metal does NOT react with dilute hydrochloric acid to produce hydrogen gas?

  • Q4 · Chemistry Basics · HARD

    A solution of pH 5 is mixed with an equal volume of a solution of pH 3. Assuming complete mixing and that both solutions are of strong acids, what is the approximate pH of the resulting mixture?

  • Q5 · Chemistry Basics · MEDIUM

    Which of the following is used as a drying agent in laboratories due to its strong affinity for water?

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